Thermogravimetric and mass-spectrometric analyses of combustion of spent potlining under N-2/O-2 and CO2/O-2 atmospheres

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dc.authorid0000-0003-1099-4363en_US
dc.authorid0000-0001-6841-6457en_US
dc.authorid0000-0002-8148-5163en_US
dc.contributor.authorSun, Guang
dc.contributor.authorZhang, Gang
dc.contributor.authorLiu, Jingyong
dc.contributor.authorXie, Wuming
dc.contributor.authorKuo, Jiahong
dc.contributor.authorLu, Xingwen
dc.contributor.authorBüyükada, Musa
dc.contributor.authorEvrendilek, Fatih
dc.date.accessioned2021-06-23T19:52:02Z
dc.date.available2021-06-23T19:52:02Z
dc.date.issued2019
dc.departmentBAİBÜ, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.description.abstractThermal decomposition and gaseous evolution of the spent potlining (SPL) combustion were quantified using thermogravimetric and mass-spectrometric analyses in CO2/O-2 and N-2/O-2 atmospheres using three heating rates (15, 20 and 25 degrees C/min). The thermal decomposition of SPL occurred mainly between 450 and 800 degrees C. Based on the four kinetic methods of Friedman, Starink, Kissinger-Akahira-Sunose and Flynn-Wall-Ozawa under the various conversion degrees (alpha) from 0.1 to 0.7, the lowest apparent activation energy was estimated at 149.81 kJ/mol in the 70% CO2 /30% O-2 atmosphere. The pre-exponential factor, and changes in entropy, enthalpy and free Gibbs energy were also estimated. The reaction model did not suggest a single reaction of the SPL combustion. With the alpha value of 0.25-0.7, the following function best described the reaction based on the Malek method: f(alpha) = 1/2 alpha and G(alpha) = ln alpha(2). The gases released during the combustion process included CO2, CO, NOx, HCN, and HF. (C) 2019 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.wasman.2019.01.047
dc.identifier.endpage249en_US
dc.identifier.issn0956-053X
dc.identifier.pmid31109523en_US
dc.identifier.scopus2-s2.0-85061337388en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage237en_US
dc.identifier.urihttps://doi.org/10.1016/j.wasman.2019.01.047
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10087
dc.identifier.volume87en_US
dc.identifier.wosWOS:000470947700024en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorBüyükada, Musa
dc.institutionauthorEvrendilek, Fatih
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofWaste Managementen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSpent Potliningen_US
dc.subjectOxy-fuel Combustionen_US
dc.subjectThermodynamic Analysisen_US
dc.subjectTG-MSen_US
dc.titleThermogravimetric and mass-spectrometric analyses of combustion of spent potlining under N-2/O-2 and CO2/O-2 atmospheresen_US
dc.typeArticleen_US

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